The intelligence of preschool children as related to ethnic and demographic variables.
D001741:Black or African American; D000367:Age Factors; D002675:Child, Preschool; D003467:Cultural Deprivation; D004522:Educational Status; D005006:Ethnicity; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007182:Income; D007360:Intelligence; D007361:Intelligence Tests; D008297:Male; D014481:United States; D014490:United States Office of Economic Opportunity